The thing about the iPad's new retina screen and processor is that yes, they're nice, but it's up to developers to take full advantage of it. Here's how some of the better retina iPad apps compare to their iPad 2 equivalents.

This isn't the review of the BlackBerry PlayBook 2.0 software. That comes tomorrow. Rather, these are just some early impressions and comparisons to the 1.0 software running through my head as I get acclimated with the thing. These opinions that may or may not change with time and familiarity.

OK, so you might have heard by now that Giz UK has been 4G-powered for a week or two. So, it's about time we gave you our real-world working experience of 4G -- what it's really like to use, and whether it's actually any good.